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How to escape special characters in building a JSON string?
...Tab
\" Double quote
\\ Backslash character
However, even if it is totally contrary to the spec, the author could use \'.
This is bad because :
It IS contrary to the specs
It is no-longer JSON valid string
But it works, as you want it or not.
For new readers, always use a double quote...
What does Maven do, in theory and in practice? When is it worth to use it? [closed]
...t a Java project just for practice. I've read about Maven, but I don't actually understand when it is meant to be used.
3 ...
Split a String into an array in Swift?
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In my tests, componentsSeparatedByString is usually significantly faster, especially when dealing with strings that require splitting into ...
In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
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When I called Integer.toHexString((byte)0xff) it returned "ffffffff" because of sign extension. So one might need to take the last two characters of the returned string.
– Marvo
Jul 27 '12 at 2...
Initialize a byte array to a certain value, other than the default null? [duplicate]
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For small arrays use array initialisation syntax:
var sevenItems = new byte[] { 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
For larger arrays use a standard for loop. This is the most readable and efficient way to do it:
var se...
Which is more correct: … OR …
...th of the container the <h1> resides in) will be clickable.
Historically you could not put a block element inside of an inline element, but this is no longer the case with HTML5. I would think that the <h1><a>..</a></h1> approach is more conventional though.
In the c...
How to sleep for five seconds in a batch file/cmd [duplicate]
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ping is a system utility that sends ping requests. ping is available on all versions of Windows.
127.0.0.1 is the IP address of localhost. This IP address is guaranteed to always resolve, be reachable, and immediately respond to pings.
-n 6 specifies that there are to be 6 pings. There is a 1s de...
Retrieve the commit log for a specific line in a file?
... -S'the line from your file' -- path/to/your/file.txt
This will give you all of the commits that affected that text in that file. If the file was renamed at some point, you can add --follow-parent.
If you would like to inspect the commits at each of these edits, you can pipe that result to git sh...
Writing a dict to txt file and reading it back?
...al() will evaluate any string, and if someone tricked you into running a really tricky string, something bad might happen. In this case, you are just running eval() on your own file, so it should be okay.
But because eval() is useful, someone made an alternative to it that is safer. This is calle...
Polymorphism vs Overriding vs Overloading
...xample when teaching a class. The canonical "Bank Account" class didn't really express the "abstractness" of the base class. The other canonical example (Animal, make noise) was too abstract for understanding. I was looking for a single base with too obvious subclasses. Actually, goPee() was the...